@ jcjeant
How many airlines do you know that are closed joint stock companies with 1000 dollars capital? In the actual MAK report in Russian there are some paragraphs about this YAK Service buisness. Falsifying records, no flight department, no safety department, the second pilot never presented a formal documented proof he was trained for the type. If you are surprised the pilots could be allowed to fly with his condition you will be also surprised this company was allowed to exist for so long, and only in July was seen as 'meeting requirements' and certified to continue operations probably by the same people that now had its license withdrawn - and of course it's not the only company like that. It is a different world to the one you are familiar with. You can be a healthy person but if really needed you can obtain a certificate that you had half of your organs removed before you turned 16 and it works the other way too. In a world where most people at their jobs from bottom up only care about what their immediate bosses say everything is possible.
On the other hand it seems that in a perfectly civilised country like France pilots can be officially allowed to fly even when they don't know how. Possibly done to provide 100% compliance and prevent falsifying records too.